Experimental studies on effect of cow dung ash (pozzolanic binder) and coconut fiber on strengthproperties of concrete

International Conference on Civil Engineering and Infrastructural Issues in Emerging Economies 2017

土木建筑工程;经济学

Venkatasubramanian, C.^1 ; Muthu, D.^1 ; Aswini, G.^1 ; Nandhini, G.^1 ; Muhilini, K.^1

School of Civil Engineering, SASTRA University, Thanjavur

613 401, India^1

关键词: Compressive and tensile strengths;    Concrete production process;    Durability of concretes;    Environmental risks;    Long-term strength;    Manufacturing process;    Reduction of emissions;    Replacement materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/80/1/012012/pdf
DOI  :  10.1088/1755-1315/80/1/012012

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The studies on durability of concrete have attracted attention in the recent years and its long term strength depends on quality of ingredients used in production of concrete. Now a days, the availability of ingredients is limited and in order to overcome this problem, research studies focuses on some alternate materials in the concrete production process. Also, Incorporation of waste materials consumes less energy leading to reduction of emission of green house gases. The application of fly ash and cow dung ash as a pozzolanic binder instead of cement and coir fibers finds extensive application in the manufacturing process of building materials. In this project an attempt has been made to utilize cow dung ash and coconut fiber as a replacement material of cement in the production of concrete. The cement is partially replaced with cow dung ash by about 2.5, 3 & 3.5 % by weight and with 1% of coconut fiber. The Compressive and Tensile strengths of concrete were found at different curing periods (7,14 & 28 days). From this study, it is inferred that these replacements will have a reasonable improvement in the strength properties of concrete by about 55-70%. The substitution of CDA, CF is economical in terms of cost and this usage eliminates the problem of landfills, reducing the environmental risk, maintaining the ecological balance, which is very much required for our nation.